#include<iostream>

#define PI 3.14

using namespace std;

int number;

int main() {
	int a = 0, b;

	cout << "a = " << a << endl;

	b = 10;

	cout << "b = " << b << endl;

	cout << "number = " << number << endl;

	int number = 10;

	cout << "number is " << number << endl;

	cout << "::number is " << ::number << endl;

	cout << "PI is " << PI << endl;

	const float pi = 3.14;

	cout << "pi is " << pi << endl;

	cin.get();
}